Fluid-pressure governor.



1.. G. ZIMMERMAN.

FLUID PRESSURE GOVERNOR.

APPLICATION FILED SEPT-16,1910.

1,187,796. Patented June 20,1916.

UNITED STATES PATENT JAMES G. ZIMMERMAN, 0F MILWAUKEE, WISCONSIN, ASSIGNOR, BY,IVESNE ASSIGN- MENTS, TO ALLIS CHALMERS MANUFAC'QURING COMPANY, A 'COBEORATIQN In DELAWARE.

FLUID-PBEQSURE GOVERNOR.

Specification of Letters Patent} Pate ted J 2Q 119.1 6

Application filed September 16, 1910. Serial No. 582,297.

for operating the switch so as to'close or open the circuit of an electric motor which drives a compressor when the fluid pressure varies beyond certain predetermined limits.

The object of my invention is to provide a novel, useful and inexpensive fluid pressure governor, which is simple and durable in construction and reliable and efiicient in operation.

, tion will be described in the specification The various novel features of my invenand particularly claims.

ihe invention is illustrated diagrammatically in the accompanying drawing.

As illustrated in the drawing, this governor is operated centrifugally and includes a rotary fluid-propelled member or turbine wheel 10, which ismadc up of an annular support upon which are mounted blades or buckets 11 against which a compressed fluid is forced. The compressed fluid is stored in a reservoir 12, which is kept filled by a pump 13 driven by a motor 14. A fluid-com veying member 15 connects the reservoir and nozzle orjet 16, which directs the How of compressed fluid against the blades or buckets 11. Located within the jet is a valve 17, which may be adjusted by a screw 18 toregulate the quantity and velocity of the escaping compressed fluid.- In this particular case I have shown the fluid-pro pelled member or fluid jet motor 10 connected by a shaft 19 to a centrifugally operated member 20, which is adapted to open and close a switch 21 of an actuating circuit 22 for the purpose of operating a switch 23 which makes and breaks the supply circuit of the motor 14. The controlling switch 23 is normally biased to closed position by set forth in the -appended a spring 24 so thatthe motor may be kept incircuit with its electrical supply source 25. The centrifugally operated member comprises two collars 26 and 27 respectively, which are connected by links 28 and 29' to which are secured fiy balls or weights 30. The collar 27 is keyed directly he the shaft while the collar 26 is slidably mounted thereon and is provided with a grooved pertion 31, which is adapted to operate the mov able contact arm 32 of the switch 21. Located between the collars 26 and 27 is a. spring 33,- which tends to force the collars farther apart thus drawing closer together the weights 30.

With all of the parts of the luid pressure system in the position shown in the diagram, the motor circuit is closed and the motor is operating the pump 13 to fill the reservoir 12. The compressed fluid is forced through the fluid-conveying member 15, valve 17, and jet 16 upon the fluid-actuated member or turbine wheel 10 causing the latten to rotate. This fiuid-actuated member causes the shaft 19 and the centrifugaily operated member to rotate with it. As the pressure in the reservoir'increases the fluid escapes through the nozzle or jet 16 with greater velocity causing the fluid-aetu atcd member 10 with its centrifugally oper ated member 20 to rotate at a higher rate of speed causing the weights 30 to iiy outwardly and drawing the collar 26clcser the collar 27 to give motion to themovable contact member 32 of the switch'2i. -iihen the pressure in the reservoir has reached-a certain predetermined value the switch 2i. will be closed and the solenoid 35 will be energized by an electrical supply 3% thus drawing out the core 36 to open the switch 23. At this instant the motor ceases to oper ate and the pressure of the fluid in the reservoir gradually decreases. sure has fallen below that certain predetermined value-the speed of rotation of the fluid actuated member 10 and centrifugallyoperated member 20 will decrease and tie When this pres-- collars will be forced farther apart by the action of spring 33 thus opening the switch 21 of the actuating circuit 22. Thesolenoid 35 then becomes denergized due to the opening of the switch 21, the switch 23 snapped closed .by the spring 24 and the I motor again connected to source of electrical supply to operate the-pump of the compressor. I

Instead of using the valve here shown puppet valve could be used; In the latter 2. a

case thefluid actuated member 10 would rotate only after the fluid in the reservoir had reached that certain predetermined value.

There may be further changes, arrangements and modifications other than that herein shown and described, and I aim in my claims to cover all such arrangements and moditicationswhich do not depart from the spirit and scope of my invention.

What I claim as new is:

1. In a fluid pressure system, a pressure reservoir, a member propelled by fluid from said reservoir. the speed of said member varying directly as the pressure of fluid in said reservoir, and a switch movable in response to the speed of operation of said member.

A fluid pressure system, comprising a pressure reservoir, a pump for supplying said reservoir, a. motor for driving said pump, a rotary fluid-propelled member, the speed of said member varying directly as the pressure in said reservoir, and a switch in the motor circuit responsive to the speed of operation of said member.

3. A fluid pressure system, comprising a pressure reservoir, a pump for supplying said reservoir, a motor for driving said pump, a rotary fluid-propelled member driven by fluid from said reservoir at a speed that varies directly as the pressure in said reservoir, and means controlled by the speed of operation of said member for rendering said pump operative or inoperative.

In av governor for fluid pressure sys tems, a rotary fluid-propelled member responsive to variations in fluid pressure, a jet directing fluid upon said member, and a circuit opening and closing switch responsive to the action. of said member.

5. In a fluid compressor governor, a fluid-- propelled member responsive to variations in fluid pressure, a jet directing said fluid upon said member, a valve in said jet for regulating the flow of said fluid, and a circuit opening and closing switch responsive to-the action of said member.

6. In a fluid pressure system, a pressure reservoir, a fluid'propelled member driven by fluid from said reservoir and responsive to variations in pressure of the fluid in the reservoir, acentrifugally operated member adapted to receive its motion from said fluidepropelled member, a main motor switch. and an actuating circuit adapted to be opened and-closed by the action of said centrifugally operated member to operate said motor switch.

7. In a governor for fluidpressure systems, a fluid-propelled member responsive to variations in fluid pressure, a jet having an adjustable valve and being directed on said. fluid-propelled member, a Weighted centrifugally operated member adapted to' receive its motion directly from said fluid propelled member, a switch, and an actuating circuit adapted to be opened and closed by the action of said centrifugally operated member to operate said switch.

8. In combination, a motor, a pump operated thereby, a fluid-propelled member responsive to variations in fluid pressure, a jet having an adjustable valve and directing the pumped fluid upon said fluid'pr0 pelled member, a spring pressed weighted member adapted to receive its motion from said fluid-propelled member, a switch for controlling a supply circuit of said motor,

and an actuating circuit adapted to be opened and closed by the action of said spring pressed weighted member to operate said switch.

9. In combination, a fluid pressure reservoir, a pump, a motor for driving said pump, means for controlling the operation of said motor, and a fluid jet motor supplied from said pressure reservoir for con trolling said motor controlling means.

10. In a governor for fluid pressure systems, a fluid-jet motor responsive to variations in fluid pressure, and a circuit opening and closing switch responsive to the action of said motor.

11. In combination, a plurality of motors, and a circuit opening and closing switch controlled by one of said motors for controlling another of said motors, one of said motors being a fluid-jet motor.

12. In combination, a fluid-pressure reservoir, a' pump, a motor for driving said pump, a circuit opening and closing device for controlling said motor, and a fluid-jet motor supplied by said pressure reservoir for controlling said controlling means.

13. In combination, a fluid compressor, means for actuating said compressor, a circuit. opening and closing switch for controlling the operation of: said means, and a fluid-jet motor for controlling said switch and being associated with said compressor.

14. In combination, an air compressor, an electric motor for actuating said compressor, a circuit opening and closing switch for controlling the operation oi said motor, and an air-jet motor for controlling said switch and being associated with said compressor.

15. In a fluid pressure system, a pressure reservoir, a pump for supplying said reservoir, a motor for driving said pump, and a fluid-propelled motor operated by a portion of the fluid under pressure suppliedto said reservoir, the speed of said fluid propelled motor varying directly as the pressure of the fluid in said reservoir to control the operation of the pump-driving motor.

16. In combination, a pressure reservoir, a pump for supplying the same, an electric motor for driving said pump, a rotarvfluidpropelled motor, an adjustable jet supplied from said reservoir for directine" fluid.

against said fluid motor, a switch in the cirresponsive to the speed of operation of said fluid motor to cl se said local circuit to operate said motor switch.

17. Ina fluid-pressure system, a pressure reservoir, a pump for supplying said reser-' voir, a motor for driving said pump, a motor propelled by fluid from said reservoir and having a substantially constant exhaust pressure whereby the speed of said fluidpropelled motor may vary as the pressure of fluid in'said reservoir, and means operative in response to a predetermined speed of operation of saidfluid-propelled motor for controlling the operation of said pumpdriving motor.

In testimony whereof I afiix my signature, in the presence of two witnesses.

' JAMES G. ZIMMERMAN.

\Vitnesses CHAS. L. BYRoN, CLARA E. BENSEL.

copiel of this patent my be obtained for live cents each, by addressing the Commissioner 0! Patents,

Wuhlngton, D. G." 

